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NXP USA Inc. LPC1837JET256,551 — Microcontrollers & Processors (MCU / MPU / DSP)
NXP USA Inc.

NXP LPC1837JET256,551 ARM Cortex-M3 MCU, 180 MHz, 1 MB Flash

MPNLPC1837JET256,551
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NXP LPC18xx series 32-bit ARM Cortex-M3 MCU, LPC1837JET256,551, 180 MHz, 1 MB Flash, 136K x 8 RAM, 164 I/O, CAN, Ethernet, USB OTG, -40°C to 105°C, 256-LBGA.

$13.4327Ref. price · indicative, final on quote
LPC1837JET256,551 datasheet
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Specifications

LPC1837JET256,551 Technical Specifications
ParameterValue
SeriesLPC18xx
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.2V ~ 3.6V
Operating temperature-40°C ~ 105°C (TA)
Speed180MHz
PackageTray
RAM size136K x 8
Core size32-Bit Single-Core
EEPROM size16K x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, Ethernet, I²C, IrDA, Microwire, QEI, SD, SPI, SSI, SSP, UART/USART, USB, USB OTG
Number of i (O)164
Core processorARM® Cortex®-M3
Case256-LBGA
Data convertersA/D 8x10b; D/A 1x10b
Program memory size1MB (1M x 8)

Product details

180 MHz Cortex-M3 with 1 MB Flash — what it means for the BOM

The 180 MHz core clock gives this part headroom for real-time control loops and protocol stacks running concurrently. That 1 MB Flash is large enough to hold a full TCP/IP stack, a CANopen or EtherCAT slave stack, and application code without splitting firmware across external memory. The 136K x 8 RAM supports multiple data buffers for Ethernet frames and USB transactions.

Connectivity and peripheral set

This MCU carries CANbus, Ethernet, USB OTG, and multiple serial interfaces (I²C, SPI, UART/USART, SSI, SSP) on-chip. The EBI/EMI port allows glueless connection to external memory or parallel peripherals. The motor control PWM and quadrature encoder interface (QEI) make it a natural fit for servo and BLDC drive applications. An internal oscillator keeps the BOM simple for non-critical clocking, though an external crystal can be used for tighter timing on Ethernet or USB.

Temperature grade and environment

Rated for -40°C to 105°C ambient. Supply range 2.2 V to 3.6 V. 256-LBGA package (17x17 mm) with 164 I/O.

Frequently asked questions

What is LPC1837JET256,551's listed speed?

The core runs at 180 MHz, which is the maximum clock for this ARM Cortex-M3 implementation in the LPC18xx series. This speed supports real-time control loops and protocol processing without external clock multiplication.

What series is LPC1837JET256,551 part of?

It belongs to the LPC18xx series, a family of 32-bit ARM Cortex-M3 microcontrollers from NXP. The series shares a common core, peripheral IP, and package options across Flash and RAM density grades.